Psychology and cognitive science professor Laurie Santos teaches the course. In it, she covers the science behind positive psychology and behavioral change. Students are required to embark on a self-improvement project throughout the course.

According to Santos, antidepressants are prescribed at 400 times the rate they were 20 years ago. That’s why Santos and Yale started offering an adapted version of the course for free via online learning platform Coursera. It’s called The Science of Well-Being. (h/t to Quartz for the news.)

Learning — and practicing — how to be happy

The Coursera lectures are filmed in Santos’ own living room. With a casual and personal approach, Santos hopes to reach people on a deeper, habit-changing level.

“The hope is that this isn’t gonna be an ordinary class or lecture series,” Santos explains in an introductory video about the course. “This is the kind of thing that we hope will change your life in a real way.”